Invention Grant
- Patent Title: Monotonic transactions in a multi-master database with loosely coupled nodes
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Application No.: US16747313Application Date: 2020-01-20
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Publication No.: US11243980B2Publication Date: 2022-02-08
- Inventor: Ronald J. Barber , Ronen Grosman , Mir Hamid Pirahesh , Vijayshankar Raman , Adam J. Storm
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Sherman IP LLP
- Agent Kenneth L. Sherman; Steven Laut
- Main IPC: G06F16/27
- IPC: G06F16/27 ; G06F16/28

Abstract:
One embodiment provides for monotonic transactions in a multi-master database with loosely coupled nodes including performing, by a processor, a read transaction protocol including: performing, by the processor, a read transaction protocol including issuing read transactions at any one of the nodes; attempting to return rows that are known to be replicated by at least a read quorum of the nodes; and for timing-out of the attempting to return rows known to be replicated by at least the read quorum of the nodes based on the special-node being non-responsive: selecting a new special-node from the nodes; and repeating attempting to return rows that are known to be replicated by at least the read quorum of the nodes.
Public/Granted literature
- US20200151196A1 MONOTONIC TRANSACTIONS IN A MULTI-MASTER DATABASE WITH LOOSELY COUPLED NODES Public/Granted day:2020-05-14
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